Screen of death threat to Windows 7

Computer giant Microsoft has confirmed it is investigating a problem called the "black screen of death", which is affecting their operating systems, including the brand new Windows 7.

The error occurs that all users of Windows 7 are the computer screen totally black after making the log in.

The company said it is reviewing reports suggesting that its latest security update, released on Nov. 10, is the cause of the problem.

Reports indicate that the fault also affects other Microsoft operating systems like Vista, XP, NT and Windows 2000.

"Millions affected
The software company Prevx, which created a program to solve the problem, says that "millions" of people may be harmed.

"Users have made a reload (reload) of Windows as a desperate attempt to solve the problem," he wrote in a blog on the firm's chairman, David Kennerley.

"We hope to help many of you to avoid the need for a recharge," he added.

However, Kennerley said the solution did not work in all cases, since "there can be many causes."

"But if you began to see her black screen in the two weeks following a Windows update or after installing any security program (including Prevx) to remove malware (malicious software) during this time, then this solution will have a high probability of working .

Kennerly said the firm had identified "at least 10 different situations that cause the same effects of the black screen.

"It seems that they have been around a few years ago," he said.

Unknown issue
Microsoft advises that all people who experience this problem with their computer should contact their customer service line.

A company spokesman said the reports "did not match any known problem" documented by Microsoft.

It has not yet submitted any solution for this bug, which causes the screen, taskbar, icons, and the vertical bar disappear.

This problem arises within two months the release of Windows 7, with the expectation that their success (or failure) will determine the future of the largest software company in the world, as outlined by the BBC journalist Tim Weber.

"90% of the world's computers use Windows, the company itself estimates that more than 1,000 million people use it," Weber said.